Well on Fifa I signed Llorente first to have a proper number 9 for Liverpool then I try to get Lucas Moura and move onto bolstering the defence but on Football Manager I managed to get Subotic for Liverpool and my next port of calls will be Kyle Walker and a new goalkeeper however I always have a look at Walcott. I tried to sign Defoe too but Spurs wanted £48 million for him and I was thinking less than 10 lol

Oxlade Chamberlain
Thiago
Criscito
There's a cheapish RB i've signed for the last few years too can't remember his name just tend to do a blanket search to find him.
RVP (don't need to now if i play as MU)
Used to always sign Subotic and Bale when he was cheap

I'm Arsenal and for the last 3 FIFA games I've bought Marcelo for LB and Abate for RB.

As for the opposite to your question I always get rid of Mertesacker because his pace is shocking! And bendtner just because I generally dislike him. He could turn awesome in the game but I dont care haha

It depends on the mode and the settings that is on. Usually its a World Class player purely because they are the only players who can improve the team. The likes of Bale due to his ability to play most of the left side of the field, whether wing back, left midfielder or winger.

If in a team made up, default settings. Never get why people buy the ones who are fast and have zero other abilities, they are shockingly bad and can be defended against. Depending on budget, much better getting a centre midfield that can control the game, defend when needed to and help out the attack when possible... they are usually made up names.

On the last football manager 2012, depending on the budget (for availability) and a good clearout of the squad (Premier League).........then Mahmadou Sakho, Claudio Marchisio, Salvatore Bochetti, Thiago (Barca), Jack Robinson, Yaya Sanogo, Jack Collinson - building for the future